Home > Products > Industrial Pipeline Series > ASME B 36.19M-2004 2520 Duplex Steel Seamless Pipe for Shipbuilding, Ship Repair
ASME B 36.19M-2004 2520 Duplex Steel Seamless Pipe for Shipbuilding, Ship Repair
- NINGBO/SHANGHAI/TIANJIN/XIAMEN
- T/T
- 8 days
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Product Details
Type | Seamless | Surface Treatment | Polished | |
Usage | Pipeline Transport, Boiler Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Special Purpose | Material | Alloy Steel | |
Section Shape | Round | Delivery Time | 8-14 days | |
Model Number | 304 316 310 904 2205 2507 | Processing Service | Bending, Welding, Decoiling, Punching, C | |
Specification | 0D 3in under |
Product Description
Detailed information:
Standard | ASTM A554, A249, A269 and A270, A312 |
Material Grade | 201 ( Ni 0.8%), 202 (Ni 3.5%~4.5%), 301(Ni 5%) 304 (Ni 8%, Cr 18%), 316 (Ni 10%, Cr 18%), 316L (Ni10%~14%), |
Outer Diameter | 6mm-1020mm |
Thickness | 0.5mm-30mm |
Length | 6m or as request |
Tolerance | a) Outer Diameter: +/- 0.2mm |
b) Thickness: +/- 0.02mm | |
c) Length: +/- 5mm | |
Application | A) General Service Industries (Petroleum, Food, Chemical, Paper, Fertilizer, Fabric, Aviation and Nuclear) B) Fluid, gas and oil transport C) Pressure and Heat Transmission D) Construction and Ornament E) Boiler Heat Exchanger |
Chemical Composition:
Chemical Composition of Material | Material Composition | 201 | 202 | 304 | 316 |
C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.08 | |
Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | |
Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | |
P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | |
S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | |
Cr | 16-18 | 17-19 | 18-20 | 16-18 | |
N | 3.5-5.5 | 4-6 | 8-10.5 | 10-14 | |
Mo | 2.0-3.0 | ||||
Mechanical Property | Material Item | 201 | 202 | 304 | 316 |
Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 | |
Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 | |
Extension | ≥30% | ≥30% | ≥35% | ≥35% | |
Hardness (HV) | <253 | <253 | <200 | <200 |
Surface Finishing:
Surface | Definition | Application |
NO.1 | The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. | Chemical tank, pipe. |
2B | Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. | Medical equipment, Food industry, Construction material, Kitchen utensils. |
NO.3 | Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001. | Kitchen utensils, Building construction |
NO.4 | Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001. | Kitchen utensils, Building construction, Medical equipment. |
HL | Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size | Building Construction. |
BA (No.6) | Those processed with bright heat treatment after cold rolling. | Kitchen utensils, Electric equipment, Building construction. |
Mirror (No.8) | Shinning like a mirror | Building construction |
Zhongzheng Stainless Steel Co., Ltd. was established in 2018 with aregistered capital of 20 million yuan. lt is a manufacturing company thatintegrates the production of special materials, manufacturing andprocessing, sales, and technology development. The company covers anarea of 2,000 square meters and has 200 employees. it has built worldclass stainless steel seamless pipe (hot piercing, cold drawing, cold rollingproduction lines, precision steel pipe production lines, and large, mediumand small-sized welded pipe production lines. The company has beencommitted to providing high performance, high precision, hightemperature-resistant, high pressure-resistant, and corrosion-resistantsolutions and technical services for industrial equipment pipeline systems.The company specializes in producing a series of steel pipes, pipe fittingsflanges, etc., such as high-temperature (nickel-based) alloys, austeniticduplex steel, urea grade stainless steel, super stainless steel, etc. Thecompany is equipped with an annual production capacity of 5,000 tons ofstainless steel seamless pipe production line, 7,000 tons of welded pipeproduction line, and 500 tons of pipe fittings production line, etc. lt canoroduce stainless steel seamless pipes with diameters ranging from ?Φ?6 to?Φ?762 and wall thicknesses ranging from 0.5 to 70 mm, stainless steelwelded pipes with diameters ranging from ?Φ?15 to ?Φ?2200 and wallthicknesses ranging from 0.5 to 80 mm, pipe fittings, and various stainlesssteel ingots, round steel, rough pipes, etc., according to customerrequirements and in accordance with standards such as GB, ASTM, etc.
Our Advantages
Qualitative Materials:
We leverage premium-grade raw materials to guarantee that our products deliver exceptional strength, durability, and longevity.
Advanced Technology:
Our production techniques incorporate cutting-edge technologies, encompassing advanced smelting, continuous casting, and rolling processes.
Customized Service:
We provide bespoke design and manufacturing services, tailored to meet the unique needs and requirements of our clientele.
Company Profile

Zhongzheng Stainless Steel Co., Ltd. is a China-based manufacturer specializing in R&D, production, and distribution of stainless steel products. Established in the early 2000s, it serves industries including construction, machinery, food/medical equipment, and energy with precision tubes, sheets, profiles, and custom components.
Contact Us
- Zhongzheng Stainless Steel Co., Ltd.
- Contact nameLaijing Bu Chat Now
- AddressRoom 104-07, Building 5, Jinghu Technology Park Huanajinghu Garden, Donglihu Subdistrict Dongli District,
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